A+ Question of the Week: RAID

AplusQOW2Which type of RAID offers the ability to implement redundancy for both disks and adapters?

    1. RAID 0
    2. RAID 1
    3. RAID 3
    4. RAID 5

The correct answer is 2.

RAID 1 employs mirroring, which makes an exact copy of the contents of one disk on another disk. Duplexing is a form of RAID 1 mirroring where the adapters that contain the drive controllers are also paired for fault tolerance.

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